Kendrick Lamar’s To Pimp a Butterfly topped the Billboard 200 for a second straight week, racking up an extra 123,000 in total album sales on its way to another Number One. Three full months into 2015, the Compton rapper’s acclaimed LP becomes only the second album – after Taylor Swift’s 1989 – to spend two weeks at Number One on the Billboard 200; every other chart-topping album has only staged a one-week cameo before relinquishing the throne. A pair of soundtracks finished at Number Two and Three on a chart that saw little competition from new albums.